Machine for applying nipples to hose.



No. 788,568. PATENTED MAY 2, 1905.

H. H. WELSH, Jn.

MACHINE FOR APPLYING NIPPLES T0 HOSE. APPLIOATIQH HLBD nu I1a, 1901.

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UNITED STATES Patented May 2, 1905.

PATENT OFFICE.

HARVEY H. WELSH, JR., OF WILMERDING,

PENNSYLVANIA, ASSIGN OR TO THE WESTINGHOUSE AIR BRAKE COMPANY, OFPITTSBURG, PEN NSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

MACHINE FOR APPLYING NIPPLES TO HOSE.

SPECIFICATION forming part of Letters Patent No. 788,568, dated May 2,1905. Application filed May 18, 1901. serai No. 60,838.

To all whom t may concern:

Be itknown that I, HARVEY H. WELSH, J r. a citizen of the United-States,residing at /Vilmerding, county of Allegheny, State of Pennsylvania,have invented or discovered a certain new and useful Improvement inMachines for Applying Nipples to Hose, of which improvement thefollowing is a specification.

The object of my invention is to provide a machine for applying nipplesto hose, and is particularly adapted to be used in connection withair-brake or other apparatus in which a screw-threaded nipple isemployed for attaching the flexible hose to the end of the trainpipeupon a car. The inner diameter of the hose is usually less than theouter diameter of the shank of the nipple, so that it requires a certainamount of power to insert the nipple into the end of the hose.

My invention consists in an improved mechanism by which the shank of thenipple and the end of the hose may be forced together and also in meansfor expanding the end of the hose at the time the nipple is beinginserted.

My invention also consists in certain combinations and arrangement ofparts, as hereinafter more fully set forth. In the accompanyingdrawings, which illustrate an embodiment of my invention, Figure 1 is acentral longitudinal section of my improved machine, showing also apiece of hose clamped in position to receive the nipple, which isindicated in dotted lines. Fig. 2 is an end elevation. Fig. 3 is atransverse section taken on the line fr of Fig. 1. Fig. 4 is an endelevation of the expander on a larger scale, and Fig. 5 is a side viewof the clamp for holding the hose in position.

The machine is mounted on two standards 1 and 2, which may be secured ona bench or any other suitable support. The cylinder 3,

which is carried by the standard 1, is provided with a piston 5, spring6, and piston-rod 4, which passes through one end of the cylinder andterminates in an enlarged end 7. This end 7 of the piston-rod is securedto a sleeve 8, which slides in a bearing in the standard 2,

having a bushing 21. In the enlarged end 7 of the piston-rod is formed arecess 12, in which the head 10 of the spindle 9 is adapted to slide.There is also a coiled spring 11 located between one end of the recessand the head 10 of the spindle, and this normally forces said head tothe opposite end of the recess. A collar 14 is mounted to slide on therod 7 and is connected with the head 10 of the spindle by means of a pin18. Slots 31 are formed in the rod 7 at the recess 12, and the pin 18passes through the collar 14, head 10, and the slots 31, which are ofsuiiicient length to accommodate the movement of the pin. The pin issecured by means of cotters or in any other convenient way. The collar14 is also provided with a latch-ring 13, which is screwed or otherwisefastened thereon. The latch 16 is pivoted to the lug 17, which issecured to the under side of the rod 7. A light spring 15 normally holdsthe latch in a position to engage the ring 13 of the collar 14.

A trip 19 is pivoted at 20 to a stationary support on the bench and hasan upward eX- tension 35, which projects into the path ofthe latch 16.

A hand-lever 33, which is bifurcated at its lower end, is pivoted to anupward extension of the standard 2, and the downwardly-pro jecting arms32 are attached to the connecting-rods 34, which are pivotally securedat their other ends to the collar 14, as shown in Figs. 2 and 3.

The forward end 37 of the sleeve 8 is re* duced in diameter, thusforming a shoulder 36, against which the nipple 23 bearswhen placed overthe reduced end 37, as indicated in dotted lines in Fig. 1. entirelythrough the sleeve 8 and at its foi ward end is attached an expansiblehead having three conical sections or wings 24, each of which is pivotedto a lug 25 on the head 22. The forward end of the reduced portion 37 ofthe sleeve is made tapering, so that the bases of the conical sectionswill slide out thereon and the expander will be spread when the spindle9 is drawn into the sleeve 8 by means of the hand-lever 33.

The spindle 9 passes A A spring 26 is secured under the forward end ofeach of the conical sections 24 and operates to contract the expanderwhen the latter is moved forward away from engagement with the taperingend of sleeve 37.

Any suitable clamp may be used for holding the hose in position.

I have shown a simple clamp composed of two blocks of wood 28 and S29,hinged together horizontally and provided with a cylindrical opening, apart of which is in each block, and of the proper diameter toaccommodate the hose 27. The upper section or block 28 is provided witha handle 30, by

which the clamp is opened and closed. The clamp is secured on the benchat the desired distance in front of the expander 22.

v The operation is then as follows: The nipple 23 is placed over thereduced portion 37 of the sleeve with its screw threaded end against theshoulder 36. The handle is then moved toward the.right, thus sliding thecollar 14 to the left on the rod 7 until the ring 13 is engaged and heldby the latch 16. The spindle 9 and head lObeing rigidly secured to thecollar 14 by means of pin 18 move with the collar 14 and compress thespring 11 in the recess 12. At the same time the bases of the conicalsections 24 slide out on the tapering end of sleeve 37 and spread theexpander to its widest position, compressing the springs 26. In thisposition the base of the conical expander is in close proximity to theend of the shank of the nipple and its diameter is equal to or'preferably a little greater than that of the nipple-shank. The hose isnow placed on the end of the expander and held securely in the clamp.The air or other fluid pressure is then admitted to the cylinder 3,forcing the piston 5 to the right. This carries the expander into theend,of the hose, spreading the same open, so that the shank of thenipple passes easily into the hose. The rod 7, sleeve 8, spindle 9,expander 22, and nipple 23 all move forward, together with the piston,until the flange of the nipple arrives at the end of the hose. At thesame time the end of the latch 16 engages the upward projection 35 ofthe trip 19, compresses spring 15, disengages the latch 16 from the ring13, and releases the spring 11. The head 10 and spindle 9 are thenthrown forward in the sleeve 8 by means of the spring 11, and the head22 is also moved forward, so that the springs 26 will force the bases ofthe conical sections inward as they slide upon the tapering end of thesleeve. The expander is now contracted, and the hose and nipple may beeasily removed from the spindle by opening the clamp. The air is thenexhausted from the cylinder 5, and the spring 6 returns the parts to thefirst position. 'Ihe trip 19 turns upon pivot 20 and allows the latch 16to pass freely on the return stroke.

While I have specifically described the preferred form of my machine, myinvention is not limited to such specific construction, but is intendedto cover any device for automatically expanding the end of the hose andforcibly inserting the shank of the nipple into the hose.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. A machine for applying nipplesY to hose, comprising an expanderhaving adiameter as great as that of the nipple for the end of the hoseand means for forcing the nipple and the hose together.

2. In a machine for applying nipples to hose, the combination, of anexpander for the end of the hose, means for forcing the nipple and hosetogether, and means for releasing the expander.

3. In a machine for applying nipples to hose, the combination, of anexpander for the end of the hose, means for forcing the nipple and hosetogether, and automatically operated means for releasing the expander.

4. In a machine for applying nipples to hose, the combination, of asleeve for carrying the nipple, a spindle within the sleeve, anexpansible head carried by the spindle and means for forcing the nippleand hose together.

5. Inamachineforapplyingnipplestohose, the combination, of a sleevehaving a shoulder for engaging the end of the nipple, a

Vspindle passing through the sleeve and an expansible head carried bythe spindle.

6. In a machine for applying nipples to hose, the combination, of asleeve adapted to hold the nipple, a spindle, an expansible head carriedby the spindle and means for moving the spindle with relation to thesleeve.

7. In a machine for applying nipples to hose, the combination, of asleeve adapted to hold the nipple, a spindle within the sleeve andhaving motion relative thereto, an expansible head carried by thespindle, and means for locking the sleeve and spindle together.

8. In a machine for applying nipples to hose, the combination, of asleeve adapted to hold the nipple, a spindle within the sleeve, anexpansible head carried by the spindle, a locking device for holding theexpander open while the nipple is forced into the hose and means forreleasing the expander.

9. In a machine for applying nipples to hose, the combination, of asleeve for carrying the nipple, a spindle within the sleeve, an expandercarried by the spindle, a latch for holding the expander open and a tripdevice and spring for automatically releasing the expander.

10. In a machine for applying nipples to hose, the combination, of asleeve for carrying the nipple, an expander for the hose, means forforcing the sleeve and expander into the hose, a clamp for holding thehose and means for releasing the expander.

11. In a machine for applying nipples to TOO hose, the combination, of aSleeve for carrying the nipple, a spindle, an expander carried by thespindle and a cylinder and a piston for forcing the nipple and expanderinto the hose.

l2. A machine for applying' nipples to hose, comprising a spindle onwhich the nipple is adapted to be mounted, a plurality of wings orsections pivoted on'the spindle, and means for extending the Sections.

13. A machine for applying' nipples to hose, Comprising a sleeve havinga tapered or conical end, a spindle Within said sleeve, an expansiblehead carried by the spindle and my hand.

H. H. WELSH, JR. Vitnesses:

E. A. WRIGHT, R. F. EMERY.

